Home / 115,132.44-158,861.70-64,143.88

Finding the Fourth Proportional to 115,132.44, 158,861.70 and 64,143.88

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Solution

The fourth proportional to 115,132.44, 158,861.70 and 64,143.88 is: 88,506.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,132.44 : 158,861.70 = 64,143.88 : x
  2. Step 2: Convert to fraction form
    115,132.44/158,861.70 = 64,143.88/x
  3. Step 3: Cross multiply
    115,132.44x = 158,861.70 × 64,143.88
  4. Step 4: Simplify right side
    115,132.44x = 10,190,005,821.40
  5. Step 5: Solve for x
    x = 10,190,005,821.40/115,132.44
  6. Step 6: Final answer
    x = 88,506.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.